'Feet' in the Bible

food for money thou dost sell me, and I have eaten; and water for money thou dost give to me, and I have drunk; only, let me pass over on my feet, --

and that which He hath done to Dathan, and to Abiram, sons of Eliab, sons of Reuben, when the earth hath opened her mouth and swalloweth them, and their houses, and their tents, and all that liveth, which is at their feet, in the midst of all Israel:

and against her seed which cometh out from between her feet, even against her sons whom she doth bear, for she doth eat them for the lacking of all things in secret, in the siege and in the straitness with which thine enemy doth straiten thee within thy gates.